Compare 100g Gold Bar Prices

Compare live 100g gold bar prices from trusted UK dealers — every major refiner and dealer compared. 100g is the standard mid-range bar weight in UK retail gold investment, balancing premium efficiency with divisibility.

100g Metalor Gold Cast Bar

From £10,917.36

5 dealers

Why 100g is the retail standard

100g gold bars sit at the sweet spot for serious UK retail gold buyers. Premium per gram is meaningfully lower than 1oz bars (production cost spreads across more metal), while the absolute purchase price remains within reach for most individual investors. A 100g gold bar at typical spot levels runs in the low-to-mid five figures — sufficiently meaningful to justify tighter premiums, but not so large as to limit market accessibility.

The 100g producer landscape

100g gold bars are produced by every major investment-grade refiner: PAMP Suisse, Heraeus, Argor-Heraeus, Metalor, Perth Mint, Royal Mint Refinery, and Rand Refinery. All carry LBMA Good Delivery accreditation. Minted formats dominate at 100g — the weight sits at the upper end of where minted finish is cost-effective; larger weights typically use cast format for premium efficiency.

Premium dynamics at 100g

100g gold bar premiums in the UK typically run 2-4% over spot — significantly tighter than 1oz coin premiums (4-6%) or fractional coin premiums (8-15%). Live dealer comparison at 100g regularly surfaces £100-£300 spreads between dealers on identical bars from the same refiner. For investors prioritising metal-per-pound deployment, 100g represents the most premium-efficient retail format.

UK tax considerations

100g gold bars are VAT-exempt as investment gold under HMRC rules (the 995 fineness threshold is comfortably exceeded — most investment bars are 9999 fine). They carry no face value or legal-tender status and therefore do not qualify for UK CGT exemption — gains above the annual allowance are taxable. For CGT-exempt gold, see gold Sovereigns or gold Britannias.

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